A009632 Expansion of sinh(x)/cosh(log(1+x)).

0, 1, 0, -2, 12, -39, 60, 400, -4872, 29449, -75240, -792054, 14470500, -126336287, 451892532, 6486922156, -158017858320, 1804082178225, -8296746885072, -150859861660106, 4593579141365820, -64784591020059959

Offset

0,4

Links

Table of n, a(n) for n=0..21.

Mathematica

Sinh[ x ]/Cosh[ Log[ 1+x ] ]

Crossrefs

Sequence in context: A000913 A026575 A048349 * A190022 A086602 A019006

Adjacent sequences: A009629 A009630 A009631 * A009633 A009634 A009635

Keyword

sign,easy

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

Status

approved